n = int(input())
e = [0]*n
E=0
for i in range(n):
    r, k, y = map(int, input().split())
    e[i] = tuple([k, r, y])
e.sort()
for i in range(n-1):
    E=E+3*(e[i][1]-e[i+1][1])**2+2*abs((2*e[i][0]-e[i+1][0])*(2*e[i][0]+e[i+1][0]))+5*abs(e[i][2]-e[i+1][2])
print(E)